Abahanga bashiraho uburyo bwangiza ibidukikije kugirango bakure REE kumivu yamakara
Abashakashatsi bo mu Ishuri Rikuru ry’ikoranabuhanga rya Jeworujiya, bakoze uburyo bworoshye bwo kugarura ibintu bidasanzwe by’ubutaka mu ivu ry’amakara bakoresheje amazi ya ionic no kwirinda ibikoresho byangiza. Mu mpapuro zasohotse mu kinyamakuru Environmental Science & Technology, abahanga basobanura ko amazi ya ionic afatwa nk’ibidukikije kandi ko ashobora gukoreshwa. Imwe muri zo, betainium bis (trifluoromethylsulfonyl) imide cyangwa [Hbet] [Tf2N], ihitamo gushonga okiside-yisi idasanzwe hejuru yizindi oxyde yicyuma. Abahanga mu bya siyansi bavuga ko amazi ya ionic nayo ashonga mu buryo budasanzwe mu mazi iyo ashyushye hanyuma agatandukanyamo ibice bibiri iyo akonje. Kumenya ibi, bashizeho kugirango bapime niba byakorwa neza kandi nibyiza ko bakuramo ibintu byifuzwa mu ivu ryamakara kandi niba bishobora gusukurwa neza, bigashyiraho inzira itekanye kandi ikabyara imyanda mike. Kugira ngo babigereho, itsinda ryateguye ivu ry’amakara hamwe n’umuti wa alkaline barayumisha. Hanyuma, bashyushya ivu ryahagaritswe mumazi hamwe na [Hbet] [Tf2N], bakora icyiciro kimwe. Iyo ikonje, ibisubizo biratandukanye. Amazi ya ionic yakuyemo ibice birenga 77% mubintu bidasanzwe-byisi biva mubintu bishya, kandi byagaruye ijanisha rirenze (97%) kumivu yikirere yari imaze imyaka mubidendezi. Igice cya nyuma cyibikorwa kwari ugukuraho ibintu bidasanzwe-byisi biva mumazi ya ionic hamwe na acide ya dilute. Abashakashatsi basanze kandi kongeramo betaine mugihe cyo gutera intambwe byongereye ubwinshi bwibintu bidasanzwe-isi byakuwe. Scandium, yttrium, lanthanum, cerium, neodymium na dysprosium byari mubintu byagaruwe. Hanyuma, itsinda ryagerageje kongera gukoresha amazi ya ionic mu kwoza n'amazi akonje kugira ngo ukureho aside irenze, basanga nta gihindutse muburyo bwo kuyikuramo hifashishijwe uburyo butatu bwo koza. Aba bahanga mu itangazamakuru bagize bati: "Ubu buryo bw’imyanda mike butanga igisubizo gikungahaye ku bintu bidasanzwe byo ku isi, bifite umwanda muke, kandi birashobora gukoreshwa mu gutunganya ibikoresho by'agaciro bivuye ku bwinshi bw'ivu ry'amakara y’amakara yabitswe mu byuzi bibikwa." Ibyavuye mu bushakashatsi birashobora kandi kuba ingenzi mu turere dukora amakara nka Wyoming, bashaka kongera ingufu mu nganda zabo mu gihe igabanuka ry’ibikomoka kuri peteroli.
Igihe cyo kohereza: Nyakanga-04-2022 